外界因素对室内游泳池三氯甲烷浓度的影响
发布时间：2018-12-14 16:52
【摘要】：为控制室内游泳池水和空气中三氯甲烷的产生,采用单因素试验分析p H值、温度和搅动速率等因素对三氯甲烷浓度的影响;并以淡水枝角水蚤和赤子爱胜蚓作为受试生物进行生物毒性试验,探讨了两种生物对室内游泳池水和空气中三氯甲烷的指示作用。结果表明,游泳池水中三氯甲烷浓度与p H值呈正相关,当p H值7.5时,其生成量随p H值升高呈倍增长;当温度25℃时,升高温度或增强水体搅动,均能促进三氯甲烷从液相至气相的传质过程;水中三氯甲烷浓度对淡水枝角水蚤24 h的LC_(50)为38.5μg/L,LC100为147.8μg/L;空气中三氯甲烷浓度530μg/m~3时蚯蚓开始逃逸,3 000μg/m~3时蚯蚓表现出完全的回避反应。故室内游泳池水p H值不宜超过7.5,夏季及人流量多时应注意通风。
[Abstract]:In order to control the production of trichloromethane in indoor swimming pool water and air, the effects of pH, temperature and stirring rate on the concentration of trichloromethane were analyzed by single factor test. The biotoxicity of two species to trichloromethane in indoor swimming pool water and air was studied. The results showed that the concentration of trichloromethane in swimming pool water was positively correlated with pH value, and when pH value was 7.5, the yield of trichloromethane increased by times with the increase of pH value. When the temperature was 25 鈩，
本文编号：2378971
[Abstract]:In order to control the production of trichloromethane in indoor swimming pool water and air, the effects of pH, temperature and stirring rate on the concentration of trichloromethane were analyzed by single factor test. The biotoxicity of two species to trichloromethane in indoor swimming pool water and air was studied. The results showed that the concentration of trichloromethane in swimming pool water was positively correlated with pH value, and when pH value was 7.5, the yield of trichloromethane increased by times with the increase of pH value. When the temperature was 25 鈩，
本文编号：2378971
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